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$13,250,000
2 Days On Site

100 Horseshoe Road
Mill Neck, NY 11765

For Sale|Single Family Residence|Active
10
Beds
15
Total Baths
10
Full Baths
5
Partial Baths
9,918
SqFt
$1,336
/SqFt
1922
Built
County:
Nassau
Listing courtesy of Daniel Gale Sothebys Intl Rlty [email protected]

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100 Horseshoe Road100 Horseshoe Road100 Horseshoe Road100 Horseshoe Road
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La Reserve - A Legendary Gold Coast Estate of Rare Provenance Perched atop one of the North Shore's most commanding elevations, at the end of a mile-long private drive overlooking the iconic Cleft Road Causeway, La Reserve serve stands among the most significant surviving estates of Long Island's storied Gold Coast. Originally commissioned in 1922 by Arthur Vining Davis - financier, industrialist, chairman of the Aluminum Company of America, and once ranked among the wealthiest men in the United States - this extraordinary residence embodies a level of craftsmanship, scale, and historical significance that is virtually impossible to replicate today. Designed by renowned architect Guy Lowell in the Italian Renaissance style, the estate was originally conceived as a grand country retreat for one of America's most influential business titans. The interiors were executed by the celebrated design firm Wm. H. Baumgarten & Co., while the grounds were masterfully designed by legendary landscape architects Ellen Biddle Shipman and Ferruccio Vitale. Their collective vision created a rare synthesis of architecture and landscape that remains remarkably intact and continues to shape the character of the estate today. The property boasts multiple auxiliary structures that provide exceptional flexibility for guests, staff, and extended family. A substantial four-bedroom guest residence offers luxurious accommodations complete with expansive entertaining rooms, a gourmet kitchen, and private wellness amenities. Above the home's five-car garage is a newly redesigned apartment, featuring a seamless open-concept living space with a large great room, two bedrooms, and two full bathrooms. Set amidst nearly 18 acres of meticulously maintained grounds, the cream-colored stucco main residence is crowned by a classic red terracotta tile roof, its elegant proportions recalling the great villas of Northern Italy. Broad rear verandas overlook rolling lawns that descend gracefully toward seasonal water views of Mill Neck Creek and Beaver Lake, creating a serene backdrop of natural beauty and privacy. Encompassing more than 10,000 square feet and comprehensively reimagined approximately 20 years ago, this exceptional residence unfolds across multiple levels of impeccably detailed living space. Rich millwork, marble flooring, intricate hardwood floors, hand-forged iron window details, marble fireplace mantels, Juliet balconies and numerous sets of French doors speak to the extraordinary level of craftsmanship throughout. The first floor features a grand formal living room, a distinguished library/study, and an elegant bar salon designed for refined entertaining. A more recent renovation introduced a spectacular chef's kitchen centered around two massive marble-clad islands and outfitted with a suite of premium Wolf and Sub-Zero appliances, two oversized farmhouse sinks, and limestone tile flooring. The space flows seamlessly into a sunlit breakfast area and adjoining den. The main residence offers seven bedrooms, including private staff quarters, with most bedrooms featuring generous closets, wood-burning fireplaces, and en-suite baths. Beneath the residence lies one of the estate's most remarkable features: a two-level walkout lower level originally created for the enjoyment of one of America's great industrial magnates. The first level includes a richly appointed mahogany bar, kitchenette, game room, screening room, spa facilities, barber shop, gym, map room, vault room and support spaces. Descending further reveals an astonishing private casino complete with its own discreet escape tunnel - a rare and captivating reminder of the estate's glamorous past. The grounds are equally compelling. A gated entrance, extensive stone walls, formal gardens, fountains, comprehensive security systems, and whole-house generators ensure effortless modern living.

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Listing Snapshot
Price 
$13,250,000
Days On Site 
2 Days
Bedrooms 
10
Inside Area (SqFt) 
9,918 sqft
Total Baths 
15
Full Baths 
10
Partial Baths 
5
Lot Size 
11.67 Acres
Year Built 
1922
MLS® Number 
1048378
Status 
Active
Property Tax 
$124,059
HOA/Condo/Coop Fees 
N/A
Sq Ft Source 
N/A
Friends & Family
Recent Activity
yesterdayStatus changed to Active
yesterdayListing updated with changes from the MLS®
2 days agoListing first seen on site
General Features
Acres 
11.67
Attached Garage 
Yes
Garage 
Yes
Garage Spaces 
7
Parking 
Attached
Property Sub Type 
Single Family Residence
Sewer 
Cesspool
SqFt Total 
12952
Style 
Estate
Utilities 
Propane
Water Source 
Public
Interior Features
Appliances 
DishwasherDryerGas CooktopGas OvenGas RangeMicrowaveStainless Steel Appliance(s)
Basement 
FinishedFullWalk-Out Access
Cooling 
Central Air
Fireplace 
Yes
Heating 
Oil
Interior 
Built-in FeaturesCathedral Ceiling(s)Double VanityEat-in KitchenEntrance FoyerGranite CountersHigh CeilingsHis and Hers ClosetsKitchen IslandNatural WoodworkPantrySaunaSoaking TubSound SystemStone CountersStorageWalk-In Closet(s)Wet Bar
Spa 
Yes
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Exterior Features
Construction Details 
StoneStucco
Lot Features 
Views
Pool Features 
Private
Private Pool 
Yes
Spa 
Yes
Spa Features 
Bath
Community Features
School District 
Locust Valley
Schools
School District
Locust Valley
Elementary School
Bayville Elementary School
Middle School
Locust Valley Middle School
High School
Locust Valley High School
Listing courtesy of Daniel Gale Sothebys Intl Rlty [email protected]


Based on information submitted to the MLS GRID as of 2026-09-10 10:44 PM EDT. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information.

Neighborhood & Commute
Source: Walkscore
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